... DC 5V High Level Solid State Relay Modules Fuse 250V 2AProduct Description1, OMRON 5V 240V solid state relay 2A, output with resistance ... signal voltage: (the state of the 0-2.5V low level relay OFF) (the state of the 3-5V ... high level relay ON) 5, the blue ... -: the cathode of a power supply CH: relay module signal trigger end (high level trigger effective ...